Lots of fun images, including many from Nanorex, making Drexler's talk appear reminiscent of a Tihamer Toth-Fejel talk.
Will NanoEngineer-1 ever be released? "NanoEngineer-1 is currently under development and is scheduled for release in the spring of 2008." People are already using the beta version too, like Tom Moore.
J. Storrs Hall gives us a link to the Sourceforge page.